Landmark Bancorp, Inc. operates as the financial holding company for Landmark National Bank that provides various financial and banking services to its local communities. It offers non-interest bearing demand, money market, checking, and savings accounts, as well as certificates of deposit. The company also provides one-to-four family residential real estate, construction and land, commercial real estate, commercial, paycheck protection program, municipal, and agriculture loans; and consumer and other loans, such as automobile, boat, and home improvement and home equity loans, as well as insurance, and mobile and online banking services.